Belt.



W. W. SPADONB BELT.

APPLICATION `FILED MAY 26.1916.

1,279,601. l PatentedSept. 24,1918.

1 -1- -I- i q ff sacan raar eieren.,

WALTER W. SPADONE, 0F BROOKLYN, NEW YORK, ASSIGNOR T0 THE GUTTA PERCHA n RUBBER MFG. CO., 0F ILYEVV YORK, N. Y., .A CORPOBATKON 0F NEW YORK.

BELT.

Specification of Letters Patent.

Patented Sept. 24k, 1195155.

Application filed May 2, 1916. Serial No. 93.929.

T0 all whom t may concern.'

Be it known that l, l/VALTER W. SPADONE, a citizen of the United States, and resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Belts, of whichvthe following is a specification.

My invention relates to belts such as are used as conveyers or elevators or as means for transmitting power and has to do more particularly with that type of such belts commonly known as rubber belts. The ob-- ject of my improvement is to provide a con.- struction in which. the component parts of the belt are eiiiciently maintained in the form of a unit, and whereby opening of the seams of the fabric layers forming part of the belt is prevented and which increases the life of a given belt materially over existing and usual constructions without being complicated or difficult to manufacture. My improvement will be fully described hereinafter and the features of novelty will be pointed out in the appended claims.

'In the accompanying drawings which illustrate an example of my improvement Figure 1 is a face view of a portion of my improved belt in the process of construction and with partsbroken away; Fig. 2 is a crosssection thereof on the line 2-2 of Fig. l; Fig. 3 is a faceview of the finished beltv with parts broken away and Fig. 4 is a cross'- section thereof on the line lf-t of Fig. 3.

The body 5 of the belt may be constructed in any suitable manner to form an inner core and as shown Acomprises a plurality of plies 6 of duck or other suitable fabric united by means of rubber or the like inthe usual Inanner to form a unit.v This body 5 while in an uncured or unvulcanlzed state 1s covered.V

with a relatively thin layer or coating 7 of'.

as shown in Figs. l and 2. The braided cover 8 is caused to rmly adhere to the body 5 by the coating 7 and is covered' with rubberl cement 9 in any suitable manner as by passing the combined body and braided cover through a rubber cement bath. Thisrubber cement 9 fills the interstices of the braided cover 8 and also covers the same, the said cover 8 in addition absorbing some of said cement and thus becoming impregnated therewith, it being understood that said cement 9 unites with the coating 7 through the interstices of said braided cover 8 and thus firmly unites the same with said body 5. lifter the cement 9 has been applied, the belt 1s subjected to a drying operation for instance by being passed over a steam table' whereby the cement 9 and coating 7 are caused to dry. The unit so far produced is then calendered for-instance by passing it.

between suitable rolls which press the ceinent into the braided cover 8 and at the same time` firmly press the cement 9 and coating '7 together and firmly unite the braided cover with the body 5 so that the belt at this time' bined with the unit instead of the particularV l cushion cover 10 shown in the illustration. The type of outer cover is always predetermined by the uses for which the finished belt is intended. In any case after the cover l0 has been applied the belt is placed for instance in a hydraulic belt press and subjected to great pressure and at the same time the whole is vulcanized it being understood that any usual vulcanizing press suitable for the intended purpose may be used. The vulcanization process results in combining all of the elements into a unit and brings the belt to a finished condition.

It will be seen that in the finished product the braided cover 8 is located between the foundation or body 5 of the belt and the outer cover 10 thereof and by virtue of its character serves to firmly unite the outer cover lO to said body 5. At the same time said braided cver 8 binds the inner p0rtions of the belt' together in an envelop as it were, and thus produces an internal unit of maximum strength and serviceability. in addition to this the braided cover 8 prevents openinger the seenie in die plies or ebrie end thus overcomes one of the meerJ serious objectio e and disadvantages commonly presen; in belts or? lre present type The o breided eover 8 else .u'm'idesl an additional Wearing surface and by being inerposed between tbe outer @over und the body or? alle belt prevents weer upon be internal unit 5 even after the outer oever l0 has been Worn through, lius increasing the life oi? the belt ineserielly,

irriprovernenii is simple, does not cornplieefe willie manufacture of the belt und dees not add materially te the cost of the production thereof but inereeees che eieieney ed Lilie belt 'lso e very gree' errent.

Various ebengee in the form shown and described muy be n'izide within the Scope of theeleiins Wilioui departing from the spirit el' my improvement ll eleirm EL A belt comprising an inner Core or body5 en ouiier @overa and e layer of braided H materiel between Suid eore and outer covers the lutter extending inwardly through the inter-ermee of Seid l ided materiel.,

2. .er bel; come sing en inner eore or w outer cov i and :in envelop of outer @over and 'fi-,lie lefber9 Seid outer eover extending inwardly tbrouglfi zbe intersbices of seid braided ebrie 3, A belt comprising e, core er body9 e eoering of rubber hereonf e braided e'ever upon seid eoa'ing end en eurer eover uponl seid braided eorer, and exending through the interstiee'e thereof inof eoneee Wirh seid rubber coating,

el., A belt comprising e core er body7 e eozuing of rubber #obereon9 a braided @over upon said eoebing, a coating oi rubber eenient upon seid braided cover end enending through ilie interstices liereoi into confaeb with seid rubber coating and en outer eover located exteriorly Suid braided eorerx 5. A belt comprising en inner eore cornposed of :i eoinbinaiion oi fabric plies end rubber, e loyer of rubber upon seid inner core, en envelop of breided febrile Cornpleely inelosing seid core, e coating of rubber cement upon said envelop and ,extending through the inberstices bliereoi into coni/eet with seid layer, and en eurer cover loeeted exferiorly of seid braided envelop, Suid leyer end seid coating and connected @hereby with Suid core.

ln tesbirnony whereof ll beve hereunto sei", niy bend.,

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